CN110616838A - Assembled composite floor slab with height limiting device and production process thereof - Google Patents
Assembled composite floor slab with height limiting device and production process thereof Download PDFInfo
- Publication number
- CN110616838A CN110616838A CN201910942739.7A CN201910942739A CN110616838A CN 110616838 A CN110616838 A CN 110616838A CN 201910942739 A CN201910942739 A CN 201910942739A CN 110616838 A CN110616838 A CN 110616838A
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- China
- Prior art keywords
- side plate
- concrete
- plate
- height
- height limiting
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
Abstract
The invention discloses an assembled composite floor slab with a height limiting device and a production process thereof. The mould of this coincide floor production preparation adopts the structure of the drawing of patterns of being convenient for, and its detailed structure is as follows: the die table is provided with a rectangular open slot, and the inner wall clinging to the open slot is hinged with a support plate. The supporting plate is rotated to the horizontal position and fixed during the installation of the side plate, the supporting plate is rotated to the vertical state after pouring is completed to enable the side plate to be suspended, then the side plate is knocked downwards, large shearing force can be generated between the side plate and concrete, and the side plate can be quickened to be separated from the concrete. This coincide floor integrative installation limit for height post in the preparation, limit for height post can be used to instruct cast in situ concrete's the thickness of pouring, effectively avoids concrete placement too much to cause extravagant problem.
Description
Technical Field
The invention belongs to the technical field of buildings, and particularly relates to an assembled composite floor slab with a height limiting device and a production process thereof.
Background
The composite floor slab is a structure with better combination of prefabrication and cast-in-place concrete, and a bottom plate of the composite floor slab and a cast-in-place concrete layer on the upper part of the composite floor slab are combined into a whole to work together. When in construction, the laminated floor slab is used as a bottom die of a cast-in-place concrete layer, so that a template does not need to be supported by the cast-in-place layer, and the construction procedures are reduced. Because the bottom surface of the composite floor slab is smooth and flat, after the slab joints are processed, the ceiling does not need to be plastered again, and the construction process can be further reduced. The composite floor slab has the advantages of high integrity, high rigidity, good crack resistance, low consumption of reinforcing steel bars, template saving and the like of a cast-in-place floor slab, and the use of the composite floor slab can effectively shorten the construction period and reduce the construction cost. Therefore, the laminated floor has been widely used in the existing building construction.
When the concrete is cast in situ at the top of the composite floor slab, the casting height is not well determined, and the waste of concrete materials is easily caused by excessive concrete casting. In addition, when the existing laminated floor slab is demolded, workers need to knock the side plates of the die on two sides, but the concrete is tightly pasted with the side plates after being solidified, so that the demolding difficulty is high, and the floor slab is easily damaged in the knocking process.
Disclosure of Invention
The invention provides an assembled composite floor slab with a height limiting device, and aims to solve the problems that in the prior art, when concrete is poured on the top of the composite floor slab, the pouring height is not easy to determine, and the concrete is easy to waste.
In addition, the invention also aims to solve the problem that the existing laminated floor slab is difficult to demould when being manufactured.
Therefore, the invention adopts the following technical scheme:
the utility model provides an assembled coincide floor with limit for height device, pour horizontal reinforcing bar and longitudinal reinforcement in the coincide floor, pour on the superimposed sheet and be fixed with the truss reinforcing bar, still be fixed with a plurality of vertical limit for height posts on the coincide floor, each limit for height post height homogeneous phase equals and its top is higher than the truss reinforcing bar.
Furthermore, the height limiting column is made of thin steel bars.
A production process of an assembled composite floor slab with a height limiting device comprises the following steps:
a. cleaning a mold table: cleaning rusts and impurities on the surface of the die table, and polishing the surface to be flat;
b. side plate cleaning and die assembling: cleaning rust, cement residues and the like on the surface of the side plate, and mounting the side plate on a mould table through a limiting block;
c. coating a release agent and a retarder: coating a retarder on the inner side of the side plate, and coating a release agent on the upper surface of a die table in the side plate;
d. binding and installing transverse steel bars, longitudinal steel bars and truss steel bars;
e. installing an embedded part: sequentially installing embedded parts such as various hooks and the like according to a component processing diagram;
f. pouring and vibrating concrete; pouring concrete into the mould, and vibrating until the surface of the concrete does not sink any more and no obvious air bubbles overflow;
g. installing a height limiting column: vertically inserting the height limiting columns into the concrete, and enabling the bottom ends of the height limiting columns to be in contact with the upper surface of the mould table, wherein all the height limiting columns are uniformly distributed;
h. and (6) demolding.
Furthermore, the die table is flat, a support column is arranged at the bottom of the die table, a rectangular open slot is formed in the die table, the side plates are arranged on the die table, the four side plates are arranged in a rectangular shape, the side plates and the die table form a die after being fixed, and the positions of the side plates correspond to the open slot; the die table is characterized in that a supporting plate is hinged to one side edge of the open slot, the upper surface of the supporting plate is flush with the upper surface of the die table when the supporting plate rotates to be in a horizontal state, and a clamping piece used for fixing the supporting plate and keeping the supporting plate horizontal is arranged at the bottom of the die table.
Furthermore, the outside of curb plate is equipped with a plurality of stoppers that are used for pushing up the solid curb plate, the one end and the mould platform of stopper can be dismantled and be connected, the other end top leans on the curb plate.
Further, the curb plate includes vertical board, the vertical board top outside is equipped with the roof, the bottom outside is equipped with the bottom plate, the width of bottom plate is less than the width of open slot.
Further, during demoulding, the limiting block is firstly removed, then the clamping piece is shifted, the supporting plate is rotated to be in a vertical state, finally the top end of the side plate is knocked downwards until the side plate is separated from concrete, and then the side plate is taken down.
Furthermore, the clamping piece comprises a shifting rod and a pin shaft, the pin shaft is vertically arranged at the bottom of the die table close to the open slot, the shifting rod is horizontally hinged to the pin shaft, and the supporting plate can be fixed and kept in a horizontal state by rotating the shifting rod.
The invention has the beneficial effects that:
1. the height limiting column is poured and fixed while the laminated floor slab is manufactured, and can be used for indicating the pouring thickness of cast-in-place concrete, so that the problem of waste caused by excessive concrete pouring is effectively avoided;
2. a plurality of height-limiting columns are fixed on the laminated floor slab, so that multi-point positioning is realized, and the plane precision control of the cast-in-place concrete pouring layer is ensured to meet the design requirement;
3. the top of open slot is located to the curb plate, when the drawing of patterns, can change the backup pad to vertical state, then strikes the curb plate downwards to be transformed into the shearing force of vertical direction with the frictional force of horizontal direction between curb plate and the concrete, effectively reduce the drawing of patterns degree of difficulty.
Drawings
FIG. 1 is a schematic structural view of a composite floor slab of the present invention;
FIG. 2 is a partial cross-sectional view of a composite floor slab of the present invention;
FIG. 3 is a schematic view of the structure of the die table of the present invention;
FIG. 4 is a top view of the structure of the die table and side plates;
FIG. 5 is a partial enlarged view of portion A of FIG. 4;
FIG. 6 is a schematic view of the structure in which the support plate rotates;
FIG. 7 is a schematic view of the construction of the side panel;
in the figure: the steel bar fixing structure comprises 1-truss steel bars, 2-height limiting columns, 3-mould tables, 4-supporting columns, 5-open grooves, 6-supporting plates, 7-clamping pieces, 8-side plates, 81-vertical plates, 82-upper top plates, 83-lower bottom plates, 9-limiting blocks, 10-transverse steel bars and 11-longitudinal steel bars.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in figures 1 and 2, the assembled composite floor slab with the height limiting device is characterized in that transverse reinforcing steel bars 10 and longitudinal reinforcing steel bars 11 are poured in the composite floor slab, truss reinforcing steel bars 1 are poured and fixed on the composite slab, a plurality of vertical height limiting columns 2 are further fixed on the composite floor slab, the heights of the height limiting columns 2 are equal, and the top ends of the height limiting columns are higher than the truss reinforcing steel bars 1. The material of limit for height post 2 is the reinforcing bar that the diameter is 6 ~ 12mm, and horizontal reinforcing bar 10 and vertical reinforcing bar 11 and truss reinforcing bar 1 all adopt the Q235 material.
The production process of the assembly type composite floor slab with the height limiting device comprises the following steps:
a. and (6) cleaning the die table. Moving the die table 3 to a PC production line cleaning machine, cleaning the surface of the die table 3, and polishing by adopting a manual polishing machine to ensure that no rust and sundries exist; during polishing, the polished part must be fully wetted by water, so that dust in a workshop is reduced to the maximum extent; the flatness of the die table 3 is checked to ensure that the die table 3 is level.
b. And cleaning side plates and assembling the modules. Cleaning the side plates 8 before assembling, and removing rust, cement residues, stains and the like on the surfaces of the side plates 8; before the side plate 8 is installed, the surface of the side plate 8 is ensured to be smooth and dry; a limiting block 9 is arranged to prevent the side plate 8 from deviating or leaking slurry when the concrete is vibrated and formed; and the dimensional deviation is ensured not to exceed the standard requirement when the module is assembled; the side plates 8 should be quality checked after installation.
c. And (3) coating a release agent and a retarder. And (3) coating a retarder on the inner side of the side plate 8, coating a release agent on the upper surface of the die table 3, and coating the release agent uniformly, without brush leakage or accumulation, and strictly coating the release agent on the steel bars. Excessive flowing surplus separant must be absorbed and cleaned by rag or sponge.
d. And transverse steel bars 10, longitudinal steel bars 11 and truss steel bars 1 are bound and installed. The type, number, spacing, size, lap joint length and exposed length of the steel bars meet the requirements of construction drawings and specifications; carefully checking the blanking size of the steel bars before binding the steel bars, and forbidding the steel bar framework which is bound and manufactured to be cut again; after the steel bar net framework is qualified, the steel bar net framework is placed into a die, cushion blocks (the longitudinal and transverse spacing is less than 800 mm) are arranged in a plum blossom shape, and the position of a steel bar is adjusted.
e. And (6) installing an embedded part. According to the component processing diagram, the positions of embedded parts such as various hooks and the like are sequentially determined, the embedded parts are marked and positioned by using a stone pen, and the embedded parts are firmly installed and fixed; and (4) strictly preventing the missed placement and the misplacement of the embedded part. Before pouring concrete, whether all embedded parts are damaged or not and whether all embedded parts are deformed or not are checked.
f. And pouring and vibrating concrete. Before pouring, the quality of concrete, including concrete strength, slump, temperature and the like, is checked, and the concrete all meets the standard requirements; after pouring is finished, starting a bottom noise vibration table, vibrating until the surface of the concrete does not sink any more and no obvious air bubbles overflow, and not vibrating for a long time to avoid concrete segregation; the embedded part and the embedded part tool are avoided during pouring; the concrete vibrating process needs to check whether the side plates 8 have the phenomena of slurry leakage, deformation or displacement of embedded parts and the like at any time; after the concrete is vibrated, the raised concrete is shoveled by a wooden trowel, and the hopper, the die, the exposed steel bars, the die table 3 and the ground are cleaned.
g. And (3) installing the height limiting column 2: adopt the sawing machine intercepting different length, the reinforcing bar of different diameters as required, need to guarantee during the interception that the cross-section is smooth and perpendicular with the axial, the length of intercepting reinforcing bar is the thickness of coincide floor plate plus later stage cast in situ concrete thickness sum, and the concrete face flushes with the reinforcing bar top during cast in situ concrete. Regard as limit for during high post 2 and the vertical insertion concrete of the reinforcing bar of intercepting to make the bottom of limit for high post 2 and the upper surface of mould platform 3 contact, set up a plurality of limit for high posts 2 according to the area size, the distance between two adjacent limit for high posts 2 is 30 ~ 50 cm.
h. And (6) demolding. And removing the side plates 8 at the periphery of the laminated floor slab.
i. And inspecting and repairing the surface of the finished product. After the prefabricated part is demoulded, the finished product is checked; the appearance quality should not have common defects and should not have serious defects. For general defects which have appeared, a repair process should be performed and re-checked for acceptance.
In order to facilitate demoulding, the mould adopts the following structure:
as shown in fig. 3 to 7, the mold includes a flat plate-shaped mold table 3 horizontally disposed, a plurality of support columns 4 are disposed at the bottom of the mold table 3, and the height of each support column 4 is 50 to 100 cm. The die table 3 is provided with a rectangular open slot 5, and the open slot 5 penetrates through the die table 3. Articulated on one side of open slot 5 have a backup pad 6, and the length of backup pad 6 slightly is less than the length of the open slot 5 that corresponds, and backup pad 6 can rotate around the pin joint, and when backup pad 6 rotated to the horizontality its upper surface is parallel and level mutually with the upper surface of mould platform 3. The bottom of the die table 3 is hinged with a plurality of fixable supporting plates 6 and enables the fixable supporting plates to keep horizontal clamping and fixing pieces 7, each clamping and fixing piece 7 comprises a shifting rod, the shifting rod is tightly attached to the lower surface of the die table 3, and a vertically arranged pin shaft is connected between the shifting rod and the die table 3.
The side plate 8 comprises a vertical plate 81, a horizontal upper top plate 82 is welded on the outer side of the top of the vertical plate 81, a horizontal lower bottom plate 83 is welded on the outer side of the bottom of the vertical plate 81, and the widths of the upper top plate 82 and the lower bottom plate 83 are both smaller than the width of the open slot 5.
When the side plate 8 is installed, the supporting plate 6 is firstly rotated to be in a horizontal state, and a worker drills to the position below the die table 3 to rotate the clamping piece 7 at the bottom of the die table 3, so that the clamping piece 7 is tightly attached to the lower surface of the supporting plate 6, and the position of the clamping piece 7 is fixed. Then place curb plate 8 on backup pad 6 to set up stopper 9 in the outside of curb plate 8, make the one end of stopper 9 tightly support vertical board 81 and press on lower plate 83, the other end passes through bolt and 3 fixed connection of mould platform, and the distance between two adjacent stoppers 9 should be 50cm, and dispersible stress point can not take place the skew in the curb plate 8 when guaranteeing to pour the concrete. The two adjacent side plates 8 are perpendicular to each other and are arranged closely, so that the slurry leakage phenomenon is prevented during pouring. The four side plates 8 abut against each other to form a rectangle, and the side plates 8 and the die table 3 together form a die.
When the mold is required to be removed after the laminated floor slab is poured and manufactured, the limiting blocks 9 are firstly removed, then the clamping and fixing pieces 7 are rotated to be parallel to the open grooves 5, and the supporting plate 6 is rotated to be in a vertical state from a horizontal state. At this time, because of the bonding effect of the concrete, the side plates 8 are bonded with the concrete into a whole, so that the support plate 6 is rotated to be vertical, and the side plates 8 are in a suspended state but cannot fall off. Then two staff handheld hammers or iron bars strike the both ends of curb plate 8, can produce great shearing force between curb plate 8 and the concrete when strikeing, and under the effect of shearing force, curb plate 8 can break away from with the concrete gradually to fall to in the open slot 5. By this method, the respective side plates 8 are all removed, thereby completing the mold release.
It should be noted that the above are only some embodiments of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an assembled coincide floor with limit for height device, its characterized in that, pour horizontal reinforcing bar and longitudinal reinforcement in the coincide floor, pour on the superimposed sheet and be fixed with the truss reinforcing bar, still be fixed with a plurality of vertical limit for height posts on the coincide floor, each limit for height post height homogeneous phase is just its top is higher than the truss reinforcing bar.
2. The fabricated composite floor slab with the height limiting device according to claim 1, wherein the height limiting columns are made of thin steel bars.
3. A process for the production of fabricated composite floor slabs with height limiting devices according to claim 1 or 2, comprising the steps of:
a. cleaning a mold table: cleaning rusts and impurities on the surface of the die table, and polishing the surface to be flat;
b. side plate cleaning and die assembling: cleaning rust, cement residues and the like on the surface of the side plate, and mounting the side plate on a mould table through a limiting block;
c. coating a release agent and a retarder: coating a retarder on the inner side of the side plate, and coating a release agent on the upper surface of a die table in the side plate;
d. binding and installing transverse steel bars, longitudinal steel bars and truss steel bars;
e. installing an embedded part: sequentially installing embedded parts such as various hooks and the like according to a component processing diagram;
f. pouring and vibrating concrete; pouring concrete into the mould, and vibrating until the surface of the concrete does not sink any more and no obvious air bubbles overflow;
g. installing a height limiting column: vertically inserting the height limiting columns into the concrete, and enabling the bottom ends of the height limiting columns to be in contact with the upper surface of the mould table, wherein all the height limiting columns are uniformly distributed;
h. and (6) demolding.
4. The production process of the assembled composite floor slab with the height limiting device as claimed in claim 3, wherein the mold table is flat, the bottom of the mold table is provided with a support column, the mold table is provided with a rectangular open slot, the side plates are arranged on the mold table, the four side plates are arranged in a rectangular shape, the side plates and the mold table form a mold after being fixed, and the positions of the side plates correspond to the open slot; the die table is characterized in that a supporting plate is hinged to one side edge of the open slot, the upper surface of the supporting plate is flush with the upper surface of the die table when the supporting plate rotates to be in a horizontal state, and a clamping piece used for fixing the supporting plate and keeping the supporting plate horizontal is arranged at the bottom of the die table.
5. The production process of the assembled composite floor slab with the height limiting device according to claim 4, wherein a plurality of limiting blocks for jacking and fixing the side plate are arranged on the outer side of the side plate, one end of each limiting block is detachably connected with the mold table, and the other end of each limiting block abuts against the side plate.
6. The production process of the assembled composite floor slab with the height limiting device as claimed in claim 5, wherein the side plates comprise vertical plates, an upper top plate is arranged on the outer sides of the tops of the vertical plates, a lower bottom plate is arranged on the outer sides of the bottoms of the vertical plates, and the width of the lower bottom plate is smaller than that of the open grooves.
7. The production process of the assembled composite floor slab with the height limiting device as claimed in claim 5, wherein during demolding, the limiting block is firstly removed, then the clamping piece is shifted, the supporting plate is rotated to be in a vertical state, finally, the top end of the side plate is knocked downwards until the side plate is separated from the concrete, and then the side plate is removed.
8. The process for manufacturing an assembled composite floor slab with a height limiting device as claimed in claim 7, wherein the fixing member comprises a shift lever and a pin, the pin is vertically arranged at the bottom of the mold table close to the open slot, the shift lever is horizontally hinged on the pin, and the support plate can be fixed and kept in a horizontal state by rotating the shift lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910942739.7A CN110616838A (en) | 2019-09-30 | 2019-09-30 | Assembled composite floor slab with height limiting device and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910942739.7A CN110616838A (en) | 2019-09-30 | 2019-09-30 | Assembled composite floor slab with height limiting device and production process thereof |
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| CN110616838A true CN110616838A (en) | 2019-12-27 |
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| CN201910942739.7A Pending CN110616838A (en) | 2019-09-30 | 2019-09-30 | Assembled composite floor slab with height limiting device and production process thereof |
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Cited By (5)
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| CN112895116A (en) * | 2021-01-19 | 2021-06-04 | 陕西中天建筑工业有限公司 | Auxiliary equipment for prefabricated plate material distribution and processing technology thereof |
| CN113059323A (en) * | 2021-03-29 | 2021-07-02 | 王亚龙 | Method for manufacturing prestressed thin plate laminated floor slab framework |
| CN113084996A (en) * | 2021-04-08 | 2021-07-09 | 邓申付 | Manufacturing and forming method of assembled prefabricated composite floor slab |
| CN113756496A (en) * | 2021-09-17 | 2021-12-07 | 中建四局第一建设有限公司 | Structure and construction method of small-space floor bearing plate under roof reverse-procedure construction |
| CN114541634A (en) * | 2022-04-27 | 2022-05-27 | 龙信集团江苏建筑产业有限公司 | Detachable prestressed reinforcement truss superimposed sheet |
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| CN113756496B (en) * | 2021-09-17 | 2022-08-19 | 中建四局第一建设有限公司 | Structure and construction method of small-space floor bearing plate under roof reverse-procedure construction |
| CN114541634A (en) * | 2022-04-27 | 2022-05-27 | 龙信集团江苏建筑产业有限公司 | Detachable prestressed reinforcement truss superimposed sheet |
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